Method of heating and apparatus therefor.



G. A. WESCHLER.

METHOD OF HEATING AND APPARATUS THEREFOR.

APPLICATION FILED FEB, 6, 1913.

A 1, 177,464. Patented Mar. 28, 1916.

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wibvmoou o I 22 h60772873 G. 'A. WESCH'LER.

METHOD OF HEATING AND APPARATUS THEREFOR.

APPLICATION FILED FEB. 6, I913- Patented Mar. 28, 1916.

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T COLUMBIA PLA JQGRAPH co-. WASHINGTON n c UNITED STATES PATENT OFFICE,

GEORGE WESCHLER, OF BROOKLAND, DISTRICT OF COLUMBIA.

METHOD on HEA'rnve' AND APPARATUS rnnnnron.

Application filed February 6, 1913. Serial No. 746,636.

Be it known that I, GEORGE A. :WES'CI-ILER, a citizen of the United States, residing at 'Brookland, in the District of Golumbia,have

invented certain new and useful Improvements in Methods of Heating and Apparatus Thereforyand I do hereby "declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make-and use thesame. I

The present invention relates to a method of heating and the apparatus therefor and consists in combinations of steps of procedure; and combinations and arrangement of elements of apparatus necessary to the carrying out of said procedure as disclosed hereinafter and particularly set forth in the accompanying claims.

The purpose of the invention is to provide a means whereby to obtain the maximum efiiciency of a steam heating apparatus by utilizing the heat contained in the water of condensation of the steam; and also to save the cost of fuel which would otherwise be required to generate the heat thus saved.

In the present method of heating by steam, the steam pressure when it is admit-, ted into the radiator is about 18-# abs, giving a temperature of about 222 F., and this steam is condensed and released from the radiator at about 200 F., when it is returned to the central heating plant by means of a vacuum pump. There is considerable loss in heat from this return feed water due to the great differences in temperature between the earth which surrounds the conduit and the return water within the conduit, and this loss, of course, becomes greater the greater the distance between the buildings to be heated and the central heating plant. This loss isunavoidable in most cases, as it is nearly always necessary to inject cold water into the return at the vacuum pump in order to pull a good vacuum on the system. The necessity of having water atacertain temperature in order to pull a vacuum on'the system, causes much waste unless the heat given off to bring the water to the desired temperature'can be utilized. The heat taken out during'tra'nsit, and absorbed by the injection of the cold water, is consequently a needless loss.

To overcome the disadvantages mentioned in the foregoing the present invention pro- Specification of Letters I Patent.

Patented Mar. 28,1916;

poses an apparatus disclosed in thefaccompanying drawings, and wherein V Figure 1 is a diagrammatic illustration of the apparatus complete; Fig. 2 is a side elevational view, partly in section, of a radia'tor per se, Fig. 3 is a detail view in front elevation of the central or main unit of'the radiator; and Fig. i is a similar view showing a modified construction thereof.

Referring to the constructionin deta'il,lA

designates a steam radiator comprising a plurality of units connected to communicate in series through the medium of registering apertures 2, and spaced at equidistant inter- I vals by engaging lugs 3, as with the ordinary type of radiator. A second radiator B I islocated immediately beneath and sup-' ports the steam radiator A'and comprises a plurality of units 4 likewise connected to communicate in series through upper and lower registering apertures 5 and 6 respectively. Said lower radiator is of the hot' water type, while the upper radiator is of the-regular form of steam radiator. 'The endmost units of the lower series 4 are provided with suitable legs 7 for supporting the 7 structure. The central unit C of the upper and lower series is constructed ofa single casting, and is provided with independent chambers S and '9 communicating respectively with the chambers of their respective adjoining series. The central radiator unit C which forms the middle section of the two united series'forms a key toconnect both radiators in combination as a substantial single unit. 'This' arrangement will cornpensate for any unequal expansion due to differences in temperature between the upper and lower radiators.

The steam pipe 10 leading from the central plant communicates with the steam radiator A and delivers the steam thereto from thecentral or other generating plant, and said pipe is provided with the usual regulating valve 11. V

A pipe l2 connects the 'lowerportion of the upper radiatorA with the upper portion of the lower radiator B; said pipe extending through the end unit of the lower seriesand terminating. vorhaving its outlet in the second or immediatelv' adjoining unit thereof, as clearly illustrated in Fig. 2. 7,

The pipe 12 is provided with a float valve comprising a casing 13 and a float 14:, and which is adapted to operate in the usual 2 i i 1,177,464 a end thereof opposite to that of the inlet pipe 12, and said outlet pipe l5fisprovidedl 5 with a thermostatic valve 16 of any apriodically release the accumulated Water of condensation in the lower radiator-[as Will be more clearly explained hereinafter.

In the operation of the'a pmtus, steam of condensation at about 200. F., and about 1 8#, abs. pressure. Th-is yvater of condensation enters the lower radiator Bthrough the 20 pipe 12 Where the pressure is about 9.5 to 10$}; abs, When there. is ,revaporation o't' some-of the Waterfdueto this reduction in pressure; This second expansion of steam immediately fills, or partially. fills, the lower radiator givingofi more heat and thus. conden'sing again at. a much lower.temperature. This condensation also, continues to give ofl heat through the Walls. of the radiator 13. until it is cooled to a temperature of about 135 F., at, Which time it Will occupythe loi ver part of theradiator and bein contact With the thermostatic valve 16' which would be adjusted to let oil Water of condensation at about that temperature. This Water; of condensation is then turned back to the power house, orcentral heating, plant through the mediumof a vacuum pump D, as shown in Fig. 1.

'The return of the condensed steam, after 40; having previously utilized its contained heat, will give off less heat to the conduit or [return pipe and the groundsurrounding it as the .diiierences in temperature of the ground and condensation hasdecreased, thus deriving 'anincrease in efliciency.

By getting more heat out ofaunit eight of heating. medium in one cycle, asdescribed in the foregoing, than for a unit Weight of the medium Where the condensation goes backat a much higher temperature will increase the efficiency. T hisincrease is due in algreat measure to the fact that the unit Weight of heating medium is already in the,

building, and if morejheat can be taken out of it, than in some'other conditions, there,

will have been saved a loss that would result from an extra transitof the'unit-weight; of medium from, the building being heated to the central heating plant. and alsoitheloss .in the. boiler since heat lost in transit can; be replaced only by burning =more-fuel for the generation of an amount :of-heat equiva-ulent'to that WlIlCliWOUlCl otherwise jb lost.:. And further, the Waterreturning, to theboiler at a lowertemperature is'more susceptible tothe absorption of heat;] also the: colder the"return ivater the easier it is to i handle'with a vacuum pump Wl1lCl1 is fur-u ther favorable to the use of the. heating-,1

system constructedas herein shown; I

' It is obvious thatlthose skilled in the art. may vary the detailsgaf construction.- .and g, arrangement of parts f wvti'thou t v departing; from the; spirit of my I invention, and therefore Ido not, wish to, limited to such 'f ea wife-s. meata mar e ssu e b n the;- claims '1 cla,im V 4 l v A.= h a in p a u o peis a; a sourceloi steam supply, a radiatorconnectedthereto and iformed of two superposed tions, an upperorsteam radiatonsection connected to said source ofstearn supply, and being provided with a hot \vaterontleu,

a valve, casing includediintsaid Outlet,,, 2,

float valveimounted in saidcasingmnd a hot; 7

water. radiator section mounted. belowasaidq steam radiator section, a connection between said valvecasing and said; hot vaterradiator section, an outlet pipe connectedtothelower portion of said hot water; radiator sectiogi', and a. thermostatic. control valvecontrolling said last mentioned outlet and; adapted, to; open When the temperature in t-he hot water radiator section falls below a predeterminedfi limit, substantially as described.

a ppar s: ompr sing; source of steam supply, a radiator; connected thereto and formed; 0i two; superposed, sec;

tions, an upper or ,steam, rs c liatgir section nloo.

connected to said source of steam supplyg j a and being provided with a; hotnvater; out -1et,-, a valve casingincluded; in said outlet, float; t valve mounted in. saidicasing, and; hot!" water radiator-sectionimounted ibeloxfisaiid 5105i 7 steam radiator: section, a: connection; between: said: valve casing and said hot waterradinfinm n, an ut pipec nne t d: was. ower :1 portionoi .said hot Water, radiator-l on the opposite sideifromgsaiid valve; casing,

and a thermostatic control valve, controlling-g said last mentionedoutletiand adapted;;to;:, open when theteinperaturein. the hot. t radiator section; falls-below a predeterminedpi limit, substantially asl-deisc ibedm "i In testimonv-whereoifi, I affix mysignaturea in presence oftwo-witnesses; v i

c GEORG Witnesses; I l BYRN J5. BnLLER;

Copies of this patent nlay beahtained forfive cents each.,by addressing u me wr qg rgi ym WashingtomlLC 

